Communications systems

Details Communications systems Communications systems

1989-03-27

1990-06-12

Eisenzopf, Reinhard

Multiplex communications

Wide area network

Packet switching

370 941, 370 951, H04J 324, H04J 300

Patent

active

049339354

ABSTRACT:
A communications network comprises a plurality of stations which can communicate via a ring. Information is transmitted from one station to another in message blocks which circulate around the ring. The message blocks include control bits and a protocol is employed which ensures that no one station can monopolize the available message blocks. Also described is a technique which allows each station independently to assess the current spare capacity of the network. A link multiplexer may be used in conjunction with rings and incorporates a similar protocol. It provides access to a link to queues of message blocks provided queue thresholds have not been reached.

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